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Comments in vim

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When writing code, I always wanted to be able to select a block of code and then [un]comment it. Here are my attempts to make it possible. The main achievent is that it works in 'VISUAL' mode too.

map // :CommentBlock<CR>
command! -range CommentBlock :noh|execute CommentRange(<line1>, <line2>)
function! CommentRange(start, stop)
    if strpart(getline(a:start), 0, 2) == "//"
        return ":" . a:start. "," . a:stop . ' s/\/\///|noh'
        return ":" . a:start. "," . a:stop . 's/^/\/\//|noh'


  • comment presence is detected by ^//
  • C/C++ oriented

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